Granted Patent
Utility
US 5,992,772 · App. 08/882,624
Apparatus for dispensing lubricating powder
Inventors:
Paul Frederick Hibner, Robert Bennett, James Costello
Patented Case
View Patent ↗
Granted: Nov 30, 1999
Filed: Jun 25, 1997
Inventors
Paul Frederick Hibner
Robert Bennett
James Costello
Assignee (at issue)
Chem-Trend Limited Partnership
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.